The evil corporation Nightrise has amassed an immense amount of power, and the devastating force of the Old Ones is about to be unleashed. Matt and three of the Gatekeepers head to the secretive underworld beneath Hong Kong, where they will meet the final Gatekeeper.

Necropolis 2014, Walker Books/Bolinda Audio

ISBN-13: 9781486231447

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Necropolis 2011, Scholastic Paperbacks, New York, NY

ISBN-13: 9780439680066

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Necropolis 2011, Turtleback Books

ISBN-13: 9780606153188

Bound for Schools & Libraries edition

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Necropolis 2009, Scholastic Press, New York, NY

ISBN-13: 9780439680035

Hardcover

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